diff --git a/ArcFormats/ArcFormats.csproj b/ArcFormats/ArcFormats.csproj index 5f005651..ffb871bf 100644 --- a/ArcFormats/ArcFormats.csproj +++ b/ArcFormats/ArcFormats.csproj @@ -107,6 +107,7 @@ + diff --git a/ArcFormats/ArcSPack.cs b/ArcFormats/ArcSPack.cs new file mode 100644 index 00000000..c8a112ab --- /dev/null +++ b/ArcFormats/ArcSPack.cs @@ -0,0 +1,214 @@ +//! \file ArcSPack.cs +//! \date Fri May 22 04:54:08 2015 +//! \brief 'SPack' resource archives. +// +// Copyright (C) 2015 by morkt +// +// Permission is hereby granted, free of charge, to any person obtaining a copy +// of this software and associated documentation files (the "Software"), to +// deal in the Software without restriction, including without limitation the +// rights to use, copy, modify, merge, publish, distribute, sublicense, and/or +// sell copies of the Software, and to permit persons to whom the Software is +// furnished to do so, subject to the following conditions: +// +// The above copyright notice and this permission notice shall be included in +// all copies or substantial portions of the Software. +// +// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER +// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING +// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS +// IN THE SOFTWARE. +// + +using System; +using System.Collections.Generic; +using System.ComponentModel.Composition; +using System.IO; +using System.Security.Cryptography; +using GameRes.Utility; + +namespace GameRes.Formats.SPack +{ + internal class SPackEntry : PackedEntry + { + public byte Method; + public ushort Crc; + } + + [Export(typeof(ArchiveFormat))] + public class DatOpener : ArchiveFormat + { + public override string Tag { get { return "SPACK"; } } + public override string Description { get { return "SPack resource archive"; } } + public override uint Signature { get { return 0x63615053; } } // 'SPac' + public override bool IsHierarchic { get { return false; } } + public override bool CanCreate { get { return false; } } + + public DatOpener () + { + Extensions = new string[] { "dat" }; + } + + public override ArcFile TryOpen (ArcView file) + { + if ('k' != file.View.ReadInt16 (4)) + return null; + int version = file.View.ReadInt16 (6); + if (1 != version) + return null; + uint data_size = file.View.ReadUInt32 (8); + int count = file.View.ReadInt32 (0x10); + if (count <= 0 || count > 0xfffff) + return null; + uint index_size = (uint)(0x38 * count); + long base_offset = 0x18; + long index_offset = base_offset + data_size; + if (index_offset >= file.MaxOffset || index_size > file.View.Reserve (index_offset, index_size)) + return null; + var dir = new List (count); + for (int i = 0; i < count; ++i) + { + var name = file.View.ReadString (index_offset, 0x20); + index_offset += 0x20; + var entry = new SPackEntry + { + Name = name, + Offset = base_offset + file.View.ReadUInt32 (index_offset), + UnpackedSize = file.View.ReadUInt32 (index_offset+4), + Size = file.View.ReadUInt32 (index_offset+8), + Method = file.View.ReadByte (index_offset+12), + Crc = file.View.ReadUInt16 (index_offset+14), + }; + if (!entry.CheckPlacement (file.MaxOffset)) + return null; + if (name.EndsWith (".dat", StringComparison.InvariantCultureIgnoreCase)) + entry.Type = "audio"; + else + entry.Type = FormatCatalog.Instance.GetTypeFromName (name); + entry.IsPacked = entry.Method != 0; + dir.Add (entry); + index_offset += 0x18; + } + return new ArcFile (file, this, dir); + } + + public override Stream OpenEntry (ArcFile arc, Entry entry) + { + var input = arc.File.CreateStream (entry.Offset, entry.Size); + var packed_entry = entry as SPackEntry; + if (null == packed_entry || !packed_entry.IsPacked) + return input; + if (1 == packed_entry.Method) + return new CryptoStream (input, new Kogado.NotTransform(), CryptoStreamMode.Read); + if (2 == packed_entry.Method) + { + using (var reader = new PackedReader (packed_entry, input)) + { + reader.Unpack(); + return new MemoryStream (reader.Data); + } + } + return input; + } + } + + internal class PackedReader : IDisposable + { + BinaryReader m_input; + uint m_packed_size; + byte[] m_output; + + public byte[] Data { get { return m_output; } } + + public PackedReader (SPackEntry entry, Stream input) + { + m_input = new BinaryReader (input); + m_packed_size = entry.Size; + m_output = new byte[entry.UnpackedSize]; + } + + public byte[] Unpack () + { + int dst = 0; + uint src = 0; + uint ctl = 0; + uint mask = 0; + + while (dst < m_output.Length && src < m_packed_size) + { + if (0 == mask) + { + ctl = m_input.ReadUInt32(); + src += 4; + mask = 0x80000000; + } + if (0 != (ctl & mask)) + { + int copy_count, offset; + + offset = m_input.ReadByte(); + src++; + copy_count = offset >> 4; + offset &= 0x0f; + if (15 == copy_count) + { + copy_count = m_input.ReadUInt16(); + src += 2; + } + else if (14 == copy_count) + { + copy_count = m_input.ReadByte(); + src++; + } + else + copy_count++; + + if (offset < 10) + offset++; + else + { + offset = ((offset - 10) << 8) | m_input.ReadByte(); + src++; + } + + if (dst + copy_count > m_output.Length) + copy_count = m_output.Length - dst; + Binary.CopyOverlapped (m_output, dst-offset, dst, copy_count); + dst += copy_count; + } + else + { + m_output[dst++] = m_input.ReadByte(); + src++; + } + mask >>= 1; + } + return m_output; + } + + #region IDisposable Members + bool disposed = false; + + public void Dispose () + { + Dispose (true); + GC.SuppressFinalize (this); + } + + protected virtual void Dispose (bool disposing) + { + if (!disposed) + { + if (disposing) + { + m_input.Dispose(); + } + disposed = true; + } + } + #endregion + } +} diff --git a/supported.html b/supported.html index 36e76f4b..e9584792 100644 --- a/supported.html +++ b/supported.html @@ -156,12 +156,21 @@ Rikorisu ~Lycoris Radiata~
*.mfg
*.mfm
*.mfsALPFNoSilky'sJokei Kazoku *MFG_
MFGA
MFGCNo *.pmp
*.pmw-YesScenePlayerNyuujoku Hitozuma Jogakuen -*.datGAMEDAT PACK
GAMEDAT PAC2NoPajamas SoftPrism Heart +*.datGAMEDAT PACK
GAMEDAT PAC2NoPajamas Soft +Aneimo 2 ~Second Stage~
+Prism Heart
+ *.epaEPNo *.arcMAINoMatsuri KikakuChikan Sharyou Nigousha *.ami
*.cmp
AM
CMNo *.mgd
*.mgsMGD
MGSNoMEGUSeduce *.agcAGdNo +*.pak+*.idx-NoEAGLS +Oppai Baka
+Mainichi Shabutte Ii Desu ka?
+ +*.gr-No +*.datSPackNoGoku-FeroInchuu Reiki Elenova

[1] Non-encrypted only